How to Determine a Dog's Age? You Can Accurately Judge It Through These Points
There are many ways to determine a dog's age. Without knowing a dog's specific age, we can estimate it by observing certain physical characteristics, such as body shape, appearance, and teeth. Today, let's share several methods for judging a dog's age.

First, we can estimate the age by observing the dog's teeth. If the dog hasn't grown its teeth yet, it's likely less than a month old; if fine, sharp teeth have emerged, the dog is probably around 2-4 months old; if teeth are in the transitional period between primary and permanent teeth, the dog is approximately 4-6 months old; if the dog has fully replaced its teeth with permanent teeth, the dog's age is at least 7 months old.

It’s difficult to accurately determine a dog’s age over one year old solely based on its teeth, because each dog’s diet and living environment are different, including the extent of tooth damage and tartar, which are unknown factors. There is no standard to support our judgment.

Besides teeth, we can also estimate the age of a dog based on its hair and physical signs. For example, medium-sized dogs generally enter old age at 7 or 8 years old.
As dogs get older, they often develop fat tumors in the shoulders, limbs, or body. Most of these are normal benign skin tumors. Furthermore, if a dog starts to move slowly, it indicates that it has entered old age.